Place dark chocolate (broken into pieces) and butter in glass bowl in microwave until just melted.
Let it cool off a bit and gently add sugar first, eggs next and finally the sifted flour.
Cover the mixture with plastic wrap and refrigerate for a couple of hours.
When you are ready for dessert, generously butter 4 ramekins.
Use half of the chocolate batter for the bottom of the ramekins making sure to divide equally among them.
Place 1/4 of your chopped chocolate of choice in the middle of each ramekin.
Cover with remaining batter.
Bake in hot (425F) oven for 8-12 minutes until crust forms on top.
Do not overbake or they will be dry!
Serve each souffle' on individual plates (after turning it upside down) sprinkled with powdered sugar and decorated with fresh berries.